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  #1   IP: 64.253.156.46
Old 09-10-2014, 12:27 PM
maverikx99 maverikx99 is offline
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Default P0088 Code

I have a very similar issue. I posted before searching, my bad.

I had been running the 300 tune for a while (since the spring). I loaded the 210 tow tune to pull a camper on a trip. An hour into the trip, the truck went into limp mode. Code was p0088 high fuel rail pressure. I loaded stock tune back in it but no change. I loaded the 300 back in and away she went no problems. I'm guessing the parameters are wider in the high tune for what the hpfp says it's putting out vs the feed back it gets from the rail sensor.

A month later the 300 is giving me similar problems and surging. Code p0194 comes up. Rail pressure intermittent. The truck surges maintaining a set speed but is ok accelerating or decel.

I replaced the rail pressure sensor, wire harness. Everything ran well after that in stock mode. I tuned up to 40hp tune. Now if I accelerate too quick or tow up a hill it will give me the p0088 code again. Ford has a revised flash that came out six months ago or so, that widens the parameters of the fuel system sensors to avoid this code coming up.

Anyone had this experience? Not looking forward to replacing the HPFP if thats what it is. Truck runs great otherwise. I havent tried the higher HP tunes yet. Never had this issue before this year and have been running the 210-300 tune mostly for 2-3 years now.

Last edited by maverikx99; 09-10-2014 at 12:38 PM.
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  #2   IP: 66.56.27.121
Old 09-10-2014, 05:09 PM
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08stroker250 08stroker250 is offline
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So the truck hasn't been to the dealer in the past few years?
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  #3   IP: 64.253.156.46
Old 09-10-2014, 05:57 PM
maverikx99 maverikx99 is offline
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Its last dealer visit was a re-flash in 2011. I returned the truck to stock as at that time it was still under warranty.
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  #4   IP: 66.56.27.121
Old 09-11-2014, 12:38 AM
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08stroker250 08stroker250 is offline
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Honestly, P0088 is the PCV in the HPFP. Ford's flash is a bandaid, and you'll still get the code with our 250 and below tunes. The 7.10 software update has an option to shut off the P0088 code, but you won't know the HPFP has failed until it actually fails (or P0087 pops up).
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  #5   IP: 66.177.67.75
Old 07-21-2016, 04:26 PM
RECON80 RECON80 is offline
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Default P0088 DTC Code, No Cruise Control, Engine stumbles, and the truck goes into LIMP Mode

I can't wait to hear what you guys think about this issue. I took my truck to Ford for Diagnostics and hopefully a flash of the PCM. I had the 150 hp Tune (DPF off) when I dropped the truck off. They ran the diagnostics but they called me because I took my $1400 tuner home with me and they wanted to put the Stock tune is first then they could flash the PCM.

I started reading the Installation Instructions from Spartan and noticed that the P0088 DTC was a User Option the I could disable. I didn't let them have my Tuner because I don't trust them NOT to scrap my ECM by not doing right. So I took my truck home, loaded in the 75HP DPF OFF turn and Disabled the P0088 DTC.

My truck runs great now! Thanks Spartan! Now, I know that I may still have a problem with some part of the Fuel Delivery System, so I'm not being agressive with throttle. It could have a catostrophic High Pressure Fuel Pump failure on my next drive...but I don't think so!
Tags: P0088, 6.4L Limp Mode, Fuel Rail Pressure High, engine stumbles
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  #6   IP: 75.132.160.61
Old 12-07-2016, 06:45 PM
MH450 MH450 is offline
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Disabling the P0088 on tuner wont make the problem go away it will still be there and slowly get worse I don't know what happens when it goes out completely but it can't be good
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  #7   IP: 216.55.234.245
Old 12-08-2016, 01:59 AM
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Mbpuller Mbpuller is offline
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Ya I'll second that the HPFP is wounded and your gona need to start tucking away some cash for one. SBYL
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  #8   IP: 50.152.215.238
Old 05-25-2017, 11:16 PM
Knack Knack is offline
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dealing with this issue now. first sign was towing with the 210 tow tune towing a 16,000k toy hauler. Trying to get up to speed getting on freeway and truck was jerking and would not up shift. Thought it was a tranny issue. Then I got the high rail pressure code, cleared it twice, then just normal driving getting on freeway it started to do the same thing when I was towing. Took it to the dealer, cab is off waiting on new HPFP. Truck only has 76,000 miles and has been maintained like no other. Fuel filters every 10k miles. Pissed that ford designed these truck so that cab needs to come off to get to the pump and how much these pumps cost compared to what one would cost for dodge or chevy. Its not a cheap repair. Dealer said they have seen alot of them come in with this issue.
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  #9   IP: 173.67.188.246
Old 05-27-2017, 05:30 PM
My09Ride My09Ride is offline
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Get over to the FB site. Not much happening here... You are kinda behind. The pump issue could be simple, bet post this on FB... Lots of us are there now. Things have changed.. Come see us
https://www.facebook.com/groups/199225453760800/
Ask to join if you have Spartan
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  #10   IP: 70.198.50.9
Old 05-30-2017, 12:56 PM
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Linetrash Linetrash is offline
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So I'm having the same issue. Check engine light on with the same code. I'm going to Ford to see what they say. What type of aftermarket pumps are there besides a reman or a racing one?

On another note I have white smoke coming from exhaust at idle. Not noticing any coolant leak just smoke at idle and goes away after driving it.
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  #11   IP: 173.67.188.246
Old 05-30-2017, 05:31 PM
My09Ride My09Ride is offline
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Go to the LAST Post, and Fine Out
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09 F-250, 210 TP Tune, DOC & DPF Delete, NL's CAI, SDP downpipe NL's CCV reroute to exhaust. Dieselsite Coolant Filter, FireStone AirSprings w/compressor.5er Puller
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Tags
fuel, p0088, p0194, pressure, rail


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